Star Bright (Septimus Series, #4)

Be careful what you wish for - you just might get it!
Jamie has no idea what he wants to do with his life, but when he makes a wish on a star and suddenly finds himself in another world, he realizes that that was NOT on the list of desirable options. Living in a magical medieval realm looks so much easier in a video game...
Fortunately, he meets Cat, who has been in the same predicament herself, and Daarshan, a strangely clumsy guy, who help him navigate his new surroundings.
Will they find...